RV-8564 Datasheet, PDF (4/40 Pages) MICORO CRYSTAL SWITZERLAND – I2C-Bus Interface Real Time Clock

Micro Crystal
Real Time Clock / Calendar Module
RV-8564
RV-8564
I²C-Bus Interface Real Time Clock / Calendar Module
1. OVERVIEW
• RTC module with built-in crystal oscillating at 32.768 kHz
• 400kHz two-wire I²C interface
• Wide Interface operating voltage: 1.8 – 5.5 V
• Wide clock operating voltage: 1.2 – 5.5 V
• Low power consumption: 250 nA typ @ 3.0V / 25°C
• Provides year, month, day, weekday, hours, minutes, seconds
• Alarm and Timer functions
• Century flag
• Low voltage detector, internal power on reset
• Programmable clock output for peripheral devices (32.768 kHz, 1024 Hz, 32 Hz, 1 Hz)
• I²C slave address: read A3h, write A2h
• Available in 2 different small and compact package sizes, RoHS-compliant and 100% leadfree:
C2: 5.0 x 3.2 x 1.2 mm
C3: 3.7 x 2.5 x 0.9 mm
2. GENERAL DESCRIPTION
The RV-8564 is a CMOS real time clock / calendar optimized for low power consumption. A programmable clock
output, interrupt output and voltage low detector are also provided. All address and data are transferred serially via
a two-line bi-directional I²C bus. Maximum bus speed is 400kbit/sec. The built-in word address register is
incremented automatically after each written or read data byte.
4/40